JP2014052769A - Automatic dispenser and member reuse method in automatic dispenser - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an automatic dispenser that can reuse an existing commodity storage column, an outer door and an inner door, and is not hindered even in cooling of a commodity of a commodity storage part.SOLUTION: A heat exchanger for heat absorption is provided on the coolant downstream sides of coolers 36, 41, 46, and coolants flow out from the coolers 36, 41, 46 absorb heat. A compressor 49 is provided corresponding to the lower part of a cooling dedicated chamber 20. The lower surface of a machine chamber partition plate 25, which is a part corresponding to upper part of the compressor 49, is a compressor escape part 61 higher than other parts, and the heat insulation thickness of the compressor escape part 61 is made thinner than those of the other parts.

Description

  The present invention relates to a vending machine in which a product storage section for storing products is configured in the upper part of the main body, and a machine room in which a compressor and a main radiator that configure a cooling unit are provided in the lower part. The present invention relates to a member reuse method for reusing a product storage column, outer door, and inner door of a machine.

  Conventionally, this kind of vending machine is configured with a product storage part that stores products in the upper part of the main body composed of a heat insulating box, and a machine room in which the compressor of the cooling unit and the main radiator are provided at the lower part Has been. The front surface of the product storage section is closed by an inner door so that it can be opened and closed, and the front face of the main body is closed by an outer door so that it can be opened and closed.

  In addition, the product storage section is divided into left and right by a heat insulating storage partition plate, and a cooling / heating switching room that can be switched between cooling and heating and a cooling-only chamber dedicated to cooling are configured, and each room stores products. Each product storage column is provided. Furthermore, the product storage section and the machine room are partitioned by a heat-insulating machine room partition plate.

  Further, the cooling / temperature switching chamber is provided with a switching chamber radiator and a switching chamber cooler that constitute a cooling unit, and the cooling chamber is provided with a dedicated chamber cooler and an endothermic heat exchanger. This heat absorption heat exchanger is installed on the downstream side of the refrigerant of each cooler and absorbs heat from the refrigerant flowing out of each cooler, so that the efficiency of cooling operation and heat pump operation can be improved even when the cooling load is small, and only for cooling In order to contribute to the cooling of the room, it is possible to save energy by reducing the operation rate of the cooling-only room (see, for example, Patent Document 1).

JP 2008-267641 A

  By the way, in recent years, in order to contribute to the solution of global environmental problems, even in this type of vending machine, the cooling / cooling switching chamber is not only an electric heater but also a heat pump that uses the high-temperature refrigerant of the cooling unit, and the cooling unit refrigerant. Energy-saving measures are being taken to convert natural refrigerants into natural refrigerants. In addition, when changing an existing vending machine equipped with a cooling unit without such energy-saving measures to a new cooling unit vending machine with energy-saving measures, the existing vending machine is replaced. Instead of disposing of everything, the main body is newly manufactured, but there is also an active movement to reuse existing product storage columns, outer doors, and inner doors attached to it.

  Such reuse of components is called renewal of vending machines, and contributes to the solution of natural environment problems by effectively using resources, but the compressor of the cooling unit with energy saving measures, Height dimension is higher than existing compressors. On the other hand, since the height of the machine room in which the existing compressor is installed is designed to be low, the vertical dimension of the product storage unit is large, and the vertical dimension of the product storage column is large accordingly. In addition, since the overall height of the main unit cannot be expanded due to restrictions at the installation site, if the product storage unit that can be attached to an existing product storage column with a large vertical dimension is configured in the upper part of the main unit, the lower machine room In order to provide a compressor of a cooling unit whose height is energy-saving, there is a problem that the height dimension is insufficient. Here, since the existing inner door and outer door are also designed in accordance with the height dimension of the existing machine room, similar problems arise when they are reused.

  The present invention has been made to solve the conventional technical problems, and can reuse existing product storage columns, outer doors, and inner doors, and also hinders cooling of products in the product storage unit. A vending machine that does not come and a method for reusing parts in the same are provided.

  The vending machine according to the invention of claim 1 is configured such that a product storage section for storing products is configured in the upper part of the main body, and a machine room in which a compressor and a main radiator that configure the cooling unit are provided in the lower part. The product storage section is partitioned into a cooling / cooling switching chamber that can be switched between cooling and heating by a heat-insulating storage partition plate and a cooling-dedicated cooling chamber, and the product storage section and the machine room are insulated. It is partitioned by the machine room partition plate, and is provided in the outer door that opens and closes the front of the main body, the inner door that opens and closes the front of the product storage section, the cold temperature switching chamber and the cooling dedicated chamber, respectively, for storing products Product storage column, cooler for switching room provided in the cooling / cooling switching chamber, and cooler for switching chamber constituting the cooling unit, and cooling for the dedicated chamber and cooling unit provided in the cooling dedicated chamber constituting the cooling unit With a heat exchanger and below the refrigerant in each cooler A heat exchanger for heat absorption is provided on the side, and the refrigerant flowing out from each cooler absorbs heat, and the compressor is provided corresponding to the lower part of the dedicated cooling chamber, and the machine room corresponding to the upper part of this compressor The lower surface of the partition plate is a compressor escape portion higher than the other portions, and the heat insulation thickness of the compressor escape portion is thinner than the other portions.

  The vending machine of the invention of claim 2 in the above invention, the machine room partition plate is composed of a steel plate machine room top plate fixed to the main body, and a heat insulating material provided on the machine room top plate, The machine room top plate has an upright flange that rises at the front end, and the heat insulating material is stored and installed behind the upright flange, and the machine room top plate above the compressor has a lower part of the upright flange. A notch that is continuously cut out from the rear is formed, this notch is closed by a closing plate having an upper wall that retreats at the height of its front end, and the compressor escape portion is located below this closing plate Is configured.

  The vending machine according to a third aspect of the present invention is characterized in that, in the above invention, the notch portion ends before the rear end of the machine room top plate.

  The vending machine of the invention of claim 4 separates the heat insulating material provided on the closing plate in the invention of claim 2 from the heat insulating material provided on the other part of the machine room top plate, The thickness dimension of the heat insulating material is made thinner than the other heat insulating materials by a difference between the height of the upper surface of the upper wall of the closing plate and the height of the upper surface of the machine room top plate.

  In the vending machine according to the fifth aspect of the present invention, in the above invention, the notch portion ends before the rear end of the machine room top plate, and the heat insulating material on the closing plate extends to the rear end of the machine room top plate. A packing is provided between the heat insulating material and the upper surface of the machine room top plate at the rear side of the notch.

  A vending machine according to a sixth aspect of the present invention is characterized in that, in each of the above inventions, the width of the compressor escape portion is smaller than the diameter of the compressor.

  A vending machine according to a seventh aspect of the present invention is characterized in that, in each of the above-mentioned inventions, the side surface of the compressor escape portion is inclined so that the lower side is expanded.

  The member reusing method of the vending machine according to the invention of claim 8 is a machine room in which a product storage section for storing products is configured in the upper part of the main body, and a compressor and a main radiator that configure the cooling unit are provided in the lower part. The product storage unit is partitioned into a cooling / cooling switching chamber that can be switched between cooling and heating by a heat-insulating storage partition plate and a cooling-dedicated cooling chamber, and the product storage unit and the machine room are insulated. The product is stored in an external door that opens and closes the front of the main unit, an inner door that opens and closes the front of the product storage unit, a cooling / cooling switching chamber, and a cooling dedicated chamber. The product storage column, the cooling / cooling chamber provided in the cooling / cooling switching chamber, and the switching chamber radiator and switching chamber cooler, and the cooling chamber and the dedicated chamber cooler and heat absorption provided in the cooling dedicated chamber For each heat exchanger In the vending machine provided with a heat exchanger for heat absorption on the downstream side of the refrigerant and absorbing heat to the refrigerant flowing out from each cooler, while using at least one of the existing product storage column, outer door and inner door, When installing a compressor having a height higher than that of an existing compressor in the machine room, the heat insulation thickness of the machine room partition plate in the part corresponding to the lower part of the cooling dedicated room is made thinner than that in the other parts. The lower surface of the chamber partition plate forms a compressor escape portion that is higher than the other portions, and a compressor having a high height is provided corresponding to the lower portion of the compressor escape portion.

  In the invention of claim 1, in the vending machine in which the product storage unit for storing the product is configured in the upper part in the main body, and the machine room in which the compressor and the main radiator that configure the cooling unit are provided in the lower part is configured. The product storage section is partitioned into a cooling / cooling switching chamber that can be switched between cooling and heating by a heat insulating storage partition partition plate and a cooling dedicated chamber for cooling, and the product storage section and the machine room are partitioned into a heat insulating machine room. An outer door that opens and closes the front of the main body, an inner door that opens and closes the front of the product storage unit, and a product storage column that is provided in each of the cooling / cooling switching chamber and the cooling dedicated chamber to store products. A switching chamber radiator and switching chamber cooler that are provided in the cooling / temperature switching chamber and that constitute the cooling unit, and a dedicated chamber cooler and heat absorption heat exchanger that are provided in the cooling dedicated chamber and that constitute the cooling unit; The refrigerant downstream of each cooler A heat exchanger for heat absorption is provided, and the refrigerant flowing out from each cooler absorbs heat, and the compressor is provided corresponding to the lower part of the cooling exclusive chamber, and the machine room partition plate corresponding to the upper part of the compressor The lower surface of the compressor is a compressor escape portion higher than the other portions, and the heat insulation thickness of the compressor escape portion is thinner than the other portions.

  In the member reuse method of the vending machine according to the eighth aspect of the present invention, a product storage section for storing products is configured in the upper part of the main body, and a compressor and a main radiator that configure the cooling unit are provided in the lower part. The machine room is configured, and the product storage unit is partitioned into a cooling / cooling switching chamber and a cooling dedicated chamber that can be switched between cooling and heating by a heat insulating storage partition plate, and the product storage unit and the machine room. Is partitioned by a heat-insulating machine room partition plate, and it is provided in the outer door that opens and closes the front of the main body, the inner door that opens and closes the front of the product storage, the cold temperature switching room, and the cooling dedicated room. Product storage column, a cooling / cooling chamber provided in the cooling / cooling switching chamber, and a switching chamber radiator and switching chamber cooler, and a dedicated chamber cooling device provided in the cooling dedicated chamber and constituting the cooling unit And an endothermic heat exchanger, A heat exchanger for heat absorption is installed downstream of the refrigerant in the cooler, and at least one of the existing product storage column, outer door, and inner door is used in a vending machine that absorbs heat from the refrigerant flowing out of each cooler. However, when installing a compressor with a height higher than that of the existing compressor in the machine room, the heat insulation thickness of the machine room partition plate corresponding to the lower part of the cooling dedicated chamber is made thinner than other parts. Since the lower surface of the machine room partition plate forms a compressor escape portion that is higher than other portions, and a compressor having a high height is provided corresponding to the lower portion of the compressor escape portion, these According to invention of Claim 1 and Claim 8, even if it is the machine room of the existing design with low height, the compressor with the high height dimension in which the energy saving measure was taken using the compressor escape part Can be installed. This makes it possible to reuse existing product storage columns, outer doors, and inner doors without any trouble.

  In particular, in order to form the compressor escape portion by making the lower surface of the machine room partition plate higher than the other portions, the heat insulation thickness of that portion is made thin, so the product storage portion to form the compressor escape portion Is not narrowed, and there is no problem in installing the existing product storage column.

  Here, if the heat insulation thickness of the machine room partition plate corresponding to the lower part of the cold temperature switching chamber is reduced to form the compressor escape portion, the temperature of the cold temperature switching chamber rises due to the heat from the compressor, and the operation The rate goes up. Therefore, there is a problem that the amount of refrigerant flowing in the heat absorption heat exchanger on the downstream side of the refrigerant in the switching chamber cooler increases and the temperature of the dedicated cooling chamber decreases more than necessary. Since the compressor escape portion is formed by reducing the heat insulation thickness of the machine room partition plate corresponding to the lower part of the chamber, such a problem does not occur. In addition, since the cooling-only chamber usually has a larger capacity than the other chambers, it can be expected that the temperature rise due to the heat effect from the compressor is suppressed as compared with the case of the cold-temperature switching chamber.

  According to the invention of claim 2, in addition to the invention of claim 1, the machine room partition plate includes a steel plate machine room top plate fixed to the main body and heat insulation provided on the machine room top plate. The machine room top plate has a standing flange that rises at the front end, and the heat insulating material is housed and installed on the rear side of the standing flange, and the machine room top plate corresponding to the upper side of the compressor has A notch is formed by continuously cutting back from the lower part of the standing flange, and this notch is closed by a closing plate having an upper wall that retreats at the height of its front end. Therefore, the compressor escape portion is also opened to the front of the machine room. Therefore, the compressor can be easily installed from the front of the machine room.

  Further, according to the invention of claim 3, in addition to the above-mentioned invention, since the notch portion is terminated before the rear end of the machine room top plate, the decrease in strength of the machine room top plate due to the formation of the notch portion is minimized. It becomes possible to limit to the limit.

  According to the invention of claim 4, in addition to the invention of claim 2, the heat insulating material provided on the closing plate and the heat insulating material provided on the other part of the machine room top plate are separated, and on the closing plate The thickness of the heat insulating material is made thinner than the other heat insulating materials by the difference between the height of the upper surface of the upper wall of the closing plate and the height of the upper surface of the top of the machine room. Thinning of the heat insulation thickness of the partition plate can be achieved with a simple configuration.

  In this case, if the notch is terminated before the rear end of the machine room top plate as in the invention of claim 5 and the heat insulating material on the closing plate extends to the rear end of the machine room top plate, In a plurality of models with different volumes of dedicated chambers, it is possible to share the heat insulating material on the closing plate and the heat insulating material on the machine room top plate on the cold / hot switching room side. Furthermore, if a packing is provided between the heat insulating material on the closing plate and the upper surface of the machine room top plate at the rear side of the notch, the gap can be filled with a relatively inexpensive packing, which reduces the cost. Reduction can be achieved. In this case as well, the cutout portion ends before the rear end of the machine room top plate, so that a decrease in strength of the machine room top plate associated with the formation of the cutout portion can be minimized.

  Further, if the width of the compressor escape portion is made smaller than the diameter of the compressor as in the invention of claim 6, the compressor having the minimum necessary width is utilized by utilizing the shape of the upper portion of the compressor that is normally curved. It is possible to install a compressor at the escape portion, and it is possible to minimize a decrease in the heat insulation performance of the machine room partition plate.

  Further, if the side surface of the compressor escape portion is inclined so that the lower portion is expanded as in the invention of claim 7, the air flow between the compressor and the compressor escape portion is smoothed, and the heat dissipation of the compressor is achieved. It is possible to improve the performance of the cooling unit and reduce the heat effect on the cooling room.

It is a front view of the vending machine of one Example to which this invention is applied. It is a perspective view of the state which opened the outer door of the vending machine of FIG. It is a front view of the main body except the outer door and each inner door of the vending machine of FIG. FIG. 4 is an enlarged front view of a machine room partition plate and a compressor in a compressor escape portion of the vending machine in FIG. 3. It is a block diagram explaining the refrigerant circuit of the vending machine of FIG. It is a partially transparent upper perspective view of the machine room partition plate of the vending machine of FIG. It is an upper perspective view of the machine room top plate of the machine room partition plate of FIG. It is a downward perspective view of the machine room top plate of FIG. It is a vertical side view of the notch part part of the machine room top plate of FIG. It is a disassembled upper perspective view of the machine room partition plate of FIG. It is an enlarged view of the notch part and obstruction | occlusion board part of FIG. It is a decomposition | disassembly lower perspective view of the machine room partition plate of FIG. It is an enlarged view of the notch part and obstruction | occlusion board part of FIG. It is an enlarged front view of the machine room partition plate and compressor of the compressor escape part of the other Example of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 and 2, a vending machine 1 according to an embodiment includes a main body 2 that is a heat insulating box body that is formed of a steel plate outer surface material 2A and a heat insulating material 2B provided on the inner side thereof and that has an open front surface. One side (left side in the embodiment) is provided with an outer door 3 pivotally supported by the main body 2 so that the front surface of the main body 2 can be opened and closed.

  A product sample chamber 4 is formed in the upper front portion of the outer door 3, and a plurality of product selection switches 6 are arranged corresponding to the plurality of product samples displayed in the product sample chamber 4. An advertisement panel 5 is configured on the front surface of the outer door 3 below the product sample chamber 4, and a product outlet 7 is configured on the lower front surface of the outer door 3 below the advertisement panel 5. .

  Further, a decorative panel 8 is attached to the right side (non-pivot side) center of the front surface of the outer door 3, and a coin insertion slot 9 and a return lever 11 are provided in the decorative panel 8. Yes. A money amount indicator 12 is attached to the front surface of the left outer door 3 facing the decorative panel 8. Further, a bill recognition device (bill burr) 14 is attached to the front surface of the lower door 3 on the lower side of the money amount indicator 12, and a coin return port 13 is disposed on the front surface of the right outer door 3 toward the product outlet 7. It is configured.

  On the other hand, an upper part in the main body 2 is configured with a product storage unit 16 whose upper surface, left and right surfaces, and rear surface are surrounded by the heat insulating material and whose front surface is open. This product storage section 16 is partitioned into three chambers in the left-right direction by a heat-insulating storage section partition plate 17, two cold / temperature switching chambers 15 are formed from the right side toward the left, and a cooling dedicated chamber 20 is formed at the left side toward the left. Yes. The cooling chamber 20 has a larger volume than each of the cooling / cooling switching chambers 15. This is because there are generally more products sold after cooling than products sold after heating. A serpentine-type product storage column 18 in which products to be sold are stored in a serpentine-shaped product passage is provided in the cooling / temperature switching chamber 15 and the cooling dedicated chamber 20 partitioned by the partition plate 17 in the front-rear direction and the left-right direction, respectively. ing.

  The front surface of the product storage unit 16 has heat insulation, and the upper inner door 21 for opening and closing the upper side of the front opening of the product storage unit 16 and the lower side of the front opening of the product storage unit 16 are opened and closed. A lower-side inner door 22 is provided. The lower inner door 22 is pivotally supported by the main body 2.

  Further, at the lower part of the lower-side inner door 22, the product carry-out port 23, which communicates between the cold / warm switching chamber 15 and the cooling-dedicated chamber 20 side of the product storage unit 16 and the outer door 3 side, is juxtaposed in the left-right direction. An openable / closable unloading door 24 is attached to each commodity unloading port 23 so as to be pivotable about the upper edge. The commodity unloading port 23 is opened by being pushed by the commodity guided forward to open the commodity. Is taken out to the product outlet 7.

  On the other hand, the upper side inner door 21 is attached to the outer door 3 corresponding to the rear side of the product sample chamber 4 of the outer door 3, and the upper side inner door 21 stores products by opening and closing the outer door 3. The upper side of the front opening of the part 16 is configured to be opened and closed. Further, the upper inner door 21 can be opened and closed rearward independently of the outer door 3 with the outer door 3 open, and the upper inner door 21 can be opened rearward from the outer door 3 The product sample displayed in the sample chamber 4 can be exchanged.

  Further, a machine room 26 opened forward is formed at a lower portion in the main body 2 by a heat-insulating machine room partition plate 25 (not shown in FIGS. 1 and 2) described later. The front surface of the machine room 26 is closed by a panel (not shown) so as to be freely opened and closed. Further, a heat insulating material to be described later of the machine room partition plate 25 insulates the lower surface of the product storage unit 16.

  The outer door 3, the upper inner door 21 and the lower inner door 22, and each product storage column 18 were attached to an existing vending machine equipped with a cooling unit that did not take energy-saving measures. The vending machine 1 of the present invention is equipped with a cooling unit 53 to be described later, which is a member and is reused to take energy saving measures. However, the main body 2 is newly manufactured according to the dimensions of the existing members to be used. Therefore, the height dimension of the machine room 26 is set to be low for a cooling unit in which energy saving measures are not taken.

  Next, in FIG. 3 and FIG. 5, in the cold temperature switching chamber 15 on the right side, a switching room cooler 36 for cooling the product stored in the cold temperature switching chamber 15 and a product for heating the product. The switching room radiator 37, the blower 38 for circulating the air heat-exchanged with these into the cold temperature switching chamber 15, and the amount of heat that is insufficient when the commodity is heated by the switching room radiator 37 An electric heater 39 is provided.

  The cold temperature switching chamber 15 on the left side also has a switching chamber cooler 41 for cooling the product stored in the cold temperature switching chamber 15, a switching chamber radiator 42 for heating the product, A blower 43 for circulating the exchanged air in the cold / hot switching chamber 15 and an electric heater 44 for supplementing the amount of heat that is insufficient when the product is heated by the switching chamber radiator 42 are provided.

  On the other hand, the leftmost cooling chamber 20 includes a dedicated chamber cooler 46 for cooling the product stored in the cooling chamber 20, the switching chamber coolers 36 and 41, and the dedicated chamber. An endothermic heat exchanger 47 for further absorbing heat from the refrigerant flowing out of the cooling unit 46 and an air blower 48 for circulating the air exchanged with these into the dedicated cooling chamber 20 are provided.

  On the other hand, an air inlet and an exhaust port (not shown) are formed in the machine chamber 26 so that air flows between the machine chamber 26 and the outside. In the machine room 26, a compressor 49, a main radiator 51, and a machine room blower 52 for air-cooling these are provided. The upper part of the compressor 49 is curved. The compressor 49 of the embodiment is a two-stage compressor having a low-stage compression section 49A and a high-stage compression section 49B, and the discharge side of the low-stage compression section 49A is the suction side of the high-stage compression section 49B. The refrigerant compressed by the low-stage compression unit 49A is sucked into the high-stage compression unit 49B and further compressed and discharged. Carbon dioxide, which is a natural refrigerant, is enclosed as the refrigerant.

  The compressor 49, the main radiator 51, the coolers 36, 41, 46, the endothermic heat exchanger 47, and the switching chamber radiators 37, 42 constitute a part of the refrigerant circuit of the cooling unit 53. To do. The cooling unit 53 is provided with a heat pump function and energy saving of natural refrigerant. In addition to the above, heat exchange is performed between the refrigerant flowing out of the heat absorption heat exchanger 47 and the refrigerant flowing out of the main radiator 51. Heat exchange between the internal heat exchanger 55 and the refrigerant flowing out of the internal heat exchanger 55 and sucked into the compressor 49 and the refrigerant flowing out of the switching chamber radiators 37 and 42. 54, expansion valves 56A, 56B, 56C for decompressing the refrigerant, and electromagnetic valves 57A, 57B, 57C, 57D, 57E, 57F for opening and closing the refrigerant flow path.

  Next, the refrigerant circuit will be described. Since carbon dioxide is used as the refrigerant as described above, the high-pressure side is in a supercritical state. That is, the discharge side of the high-stage compression section 49B of the compressor 49 is branched and connected to the inlets of the switching chamber radiators 37 and 42 via the electromagnetic valves 57A and 57B, respectively. The outlets of the switching chamber radiators 37 and 42 merge and are connected to the inlet of the main radiator 51 via the internal heat exchanger 54. Further, the discharge side of the compressor 49 further branches and is connected to the inlet of the main radiator 51 through an electromagnetic valve 57C.

  The outlet of the main radiator 51 branches after passing through the internal heat exchanger 55, and is switched for the switching chamber via the solenoid valve 57D and the expansion valve 56A, the solenoid valve 57E and the expansion valve 56B, the solenoid valve 57F and the solenoid valve 56C, respectively. Connected to the inlets of the coolers 46 and 41 and the cooler 46 for the exclusive room. The outlets of the coolers 36, 41, and 46 are joined and then connected to the inlet of the heat absorption heat exchanger 47, whereby the heat absorption heat exchanger 47 is connected to the refrigerant downstream of the coolers 36, 41, and 46. Located on the side. And the exit of this heat exchanger 47 for heat absorption passes through the internal heat exchangers 55 and 54 in order, and is connected to the suction side of the lower stage compression section 49A of the compressor 49.

  Each chamber 15, 15, 16 is provided with a temperature sensor (not shown) that independently detects the temperature thereof, and includes a compressor 49, electric heaters 39, 44, electromagnetic valves 57 A-57 F, expansion valves 56 A-56 C, Each blower 38, 43, 48, 52 is controlled by the controller 58 based on the output of these temperature sensors and various settings. The controller 58 is composed of a general-purpose microcomputer, and is actually provided in the electrical box of the machine room 26 (FIG. 3).

  That is, when all the cooling temperature switching chambers 15 and the cooling exclusive chamber 20 are cooled, the controller 58 closes the electromagnetic valves 57A and 57B and opens the electromagnetic valves 57C to 57F. Thus, the high-temperature and high-pressure refrigerant discharged from the compressor 49 reaches the main radiator 51 through the electromagnetic valve 57C and radiates heat there. Thereafter, the refrigerant is diverted through the internal heat exchanger 55 and is decompressed by the expansion valves 56A to 56C via the electromagnetic valves 57D to 57F, respectively, and then flows into the switching chamber coolers 36 and 41 and the dedicated chamber cooler 46. Each evaporates. The cold temperature switching chambers 15 and 15 and the cooling dedicated chamber 20 are cooled by the endothermic action at this time. The refrigerants coming out of the respective coolers 36, 41, and 46 join together and then flow into the heat-absorbing heat exchanger 47, where they further evaporate and exhibit an endothermic action.

  Thereby, even when the cooling load is small, the efficiency of the cooling operation and the heat pump operation to be described later can be improved and the cooling dedicated chamber 20 can be cooled. Therefore, energy saving can be achieved by reducing the operating rate of the cooling dedicated chamber 20. it can. The refrigerant from the heat absorption heat exchanger 47 supercools the refrigerant from the main radiator 51 via the internal heat exchangers 55 and 54, or from the switching chamber radiators 37 and 42 as described later. After the refrigerant that has come out is cooled, it is sucked into the compressor 49. Further, the controller 58 opens and closes the electromagnetic valves 57D to 57F based on the outputs of the temperature sensors of the chambers 15 and 20, thereby cooling the temperatures of the chambers 15 and 20 to the set temperature.

  Next, when heating each cold / warm switching chamber 15, the controller 58 opens the electromagnetic valves 57A, 57B, and 57F, and closes the electromagnetic valves 57C, 57D, and 57E. As a result, the high-temperature and high-pressure refrigerant discharged from the compressor 49 is divided and reaches the switching chamber radiators 37 and 42 via the electromagnetic valves 57A and 57B, respectively. (Heat pump operation). The refrigerant that has exited the switching chamber radiators 37 and 42 flows into the main radiator 51 through the internal heat exchanger 54, where it further dissipates heat. The refrigerant that has passed through the main radiator 51 passes through the internal heat exchanger 55, is then depressurized by the expansion valve 56C via the electromagnetic valve 57F, and then flows into the dedicated chamber cooler 46 to evaporate. The exclusive cooling chamber 20 is cooled by the endothermic action at this time. The refrigerant discharged from the dedicated chamber cooler 46 then flows into the heat absorption heat exchanger 47 and further evaporates there to exhibit an endothermic effect as described above.

  The refrigerant discharged from the heat absorption heat exchanger 47 supercools the refrigerant discharged from the main radiator 51 via the internal heat exchangers 55 and 54, or the refrigerant discharged from the switching chamber radiators 37 and 42. After cooling, it is sucked into the compressor 49. When the heating by each of the switching chamber radiators 37 and 42 is insufficient, the controller 58 heats the electric heaters 39 and 44 based on the output of the temperature sensor in the chamber 15 to compensate for the shortage. Further, in this case, the heat absorption amount of the refrigerant in the heat absorption heat exchanger 47 increases, so that the temperature of the refrigerant discharged at the time of starting the compressor 49 is raised in a short time and the switching chamber radiators 37 and 42 are heated. The capacity can also be improved, and the operation rate of the electric heaters 39 and 44 can be lowered.

  Next, the arrangement of the compressor 49 in the machine room 26 of the vending machine 1 and the structure of the machine room partition plate 25 will be described in detail with reference to FIGS. 3, 4, and 6 to 13. explain. As described above, the vending machine 1 of the present invention reuses the outer door 3, the upper inner door 21, the lower inner door 22, and the commodity storage columns 18 of the existing vending machine. The height dimension of the chamber 26 is a low value for a cooling unit in which energy saving measures are not taken. On the other hand, the compressor 49 of the cooling unit 53 has a height dimension higher than that of an existing compressor that has not been subjected to energy saving measures, so that the height dimension of the machine room 26 is insufficient and cannot be installed.

  Therefore, in the present invention, the compressor 49 is provided corresponding to the lower part of the cooling exclusive chamber 20 as shown in FIG. 3, and the compressor escape portion is provided on the lower surface of the machine chamber partition plate 25 corresponding to the upper part of the compressor 49. 61 is formed. In the compressor escape portion 61, the lower surface of the machine room partition plate 25 is higher than the lower surface of other portions by a predetermined dimension. 3, 62 and 63 are reinforcing members attached between the unit base 64 of the main body 2 and the machine room partition plate 25 on the left and right sides of the machine room 26.

  Next, the structure of the machine room partition plate 25 will be described in detail. The machine room partition plate 25 is a steel plate machine room top plate 66, heat insulating materials 67 to 69 disposed on the machine room top plate 66, packing 71, and a notch 72 formed in the machine room top plate 66. It is comprised from the obstruction board 73 made from the steel plate which obstruct | occludes. An upright flange 66A is formed at the front end of the machine room top plate 66 so as to rise substantially vertically and then bent forward at a substantially right angle. The periphery of the machine room top plate 66 excluding the standup flange 66A is bent. Is fixed to the outer surface material 2A of the main body 2 by welding.

  Since the compressor 49 is installed in the machine chamber 26 at a position corresponding to the lower side of the cooling dedicated chamber 20 as described above, the notch 72 corresponds to a position corresponding to the upper side of the compressor 49 (below the cooling dedicated chamber 20). To the machine room top plate 66 at the position of the machine room. In this case, the notch 72 is formed by continuously notching the machine room top plate 66 rearward from the lower portion of the standing flange 66A with a predetermined width smaller than the diameter of the compressor 49, and its rear end is the machine room. It ends before the rear end of the top board 66.

  Then, the closing plate 73 is addressed to the machine room top plate 66 so as to block the notch 72 from below, and the surrounding flange 73B is the lower surface of the machine room top plate 66 while being inserted into the notch 72. The closing plate 73 is fixed to the machine room top plate 66 by being welded to the front surface of the standing flange 66A. The closing plate 73 is fixed to the machine room top plate 66 and has an upper wall 73A having the same height as the front end of the notch 72, and the upper wall 73A extends rearward at the same height. The left and right and rear side walls 73C are lowered substantially vertically. And the compressor escape part 61 is comprised under this obstruction board 73. FIG. Therefore, the compressor escape portion 61 opens forward and downward, and the lower surface of the upper wall 73A of the closing plate 73 (the lower surface of the machine room partition plate 25) that becomes the ceiling of the compressor escape portion 61 is another machine room ceiling. The height of the front end of the notch 72 is equal to the thickness of the closing plate 73 than the lower surface of the plate 66 (the lower surface of the machine room partition plate 25). Further, the width of the compressor escape portion 61 is smaller than the diameter of the compressor 49 (FIG. 4).

  The heat insulating materials 67 to 69 are separate heat insulating plate materials, the heat insulating materials 67 are provided on the machine room top plate 66 corresponding to the lower portions of the two cold / warm switching chambers 15, and the heat insulating material 68 is provided for the cooling dedicated chamber 20. The heat insulating material 69 is provided on the machine room top plate 66 of the other part, and is provided on the closing plate 73 below, and corresponds to the lower part of the cooling dedicated chamber 20. Each of the heat insulating materials 67 to 69 is housed and installed on the rear side of the standing flange 66 </ b> A, and the rear portion extends to the rear end of the machine room top plate 66. Accordingly, the difference in height between the upper surface of the upper wall 73A of the closing plate 73 and the upper surface of the machine room top plate 66 is between the heat insulating material 68 on the closing plate 73 and the machine room top plate 66 at the rear portion of the notch 72. However, a packing 71 is provided and filled in the gap (FIG. 9).

  Further, the thickness dimension of the heat insulating material 68 is set to be thinner than the thickness dimension of the heat insulating materials 67 and 69 by the difference between the height of the upper surface 73A of the upper wall 73A of the closing plate 73 and the height of the upper surface of the machine room top plate 66. Thus, the upper surfaces of the heat insulating materials 67, 68, and 69 are substantially flush with each other when installed on the machine room top plate 66 and the closing plate 73. Thereby, although the heat insulation thickness of the machine room partition plate 25 is thinner than the other parts only in the compressor escape portion 61, the top surfaces of the heat insulating materials 67 to 69 are flush and only the heat insulating material 68 is on the upper side. Since it does not protrude, the cooling exclusive chamber 20 is not narrowed.

  Since the upper part of the compressor 49 enters the compressor escape portion 61 as shown in FIG. 3, even if the compressor 49 has a height dimension higher than that of the compressor not provided with energy saving measures, And can be installed in the machine room 26. At this time, since the upper portion of the compressor 49 is curved, the compressor 49 does not come into contact with the closing plate 73 even if the compressor escape portion 61 has a width narrower than the diameter as shown in FIG.

  As described above, in the present invention, the compressor 49 having a height higher than that of the existing compressor is used while the existing product storage column 18, the outer door 3, the upper inner door 21, and the lower inner door 22 are used. In providing in the chamber 26, by making the heat insulation thickness of the machine room partition plate 25 corresponding to the lower part of the cooling dedicated chamber 20 thinner than the other parts, the lower surface of the machine room partition plate 25 is made smaller than the other parts. Since the high compressor escape portion 61 is formed and the compressor 49 having a high height corresponding to the lower portion of the compressor escape portion 61 is provided, the machine room 26 of the existing design having a low height is used. However, it becomes possible to use the compressor escape portion 61 to install the compressor 49 having a high height with energy-saving measures taken. Thereby, the existing product storage column 18, the outer door 3, the upper side inner door 21, and the lower side inner door 22 can be reused without hindrance.

  In particular, in order to form the compressor escape portion 61 by making the lower surface of the machine room partition plate 25 higher than the other portions, the heat insulation thickness of that portion is reduced, so that the compressor escape portion 61 is formed. The product storage section 16 in the cooling dedicated chamber 20 is not narrowed, and there is no problem in installing the existing product storage column 18.

  In addition, when the heat insulation thickness of the machine room partition plate 25 corresponding to the lower part of the cool / warm switching chamber 15 is reduced to form the compressor escape portion 61, the temperature of the cool / warm switch chamber 15 is affected by the heat from the compressor 49. It rises and the driving rate goes up. When the operating rate of the cool / warm switching chamber 15 increases, the amount of refrigerant flowing to the heat absorption heat exchanger 47 on the refrigerant downstream side of the switching chamber coolers 36 and 41 increases, so that the amount of absorbed heat also increases, and the dedicated cooling chamber 20 However, if the compressor escape portion 61 is formed by reducing the heat insulation thickness of the machine room partition plate 25 corresponding to the lower part of the cooling dedicated chamber 20 as in the present invention, This problem does not occur. Moreover, since the capacity | capacitance of the cooling exclusive room 20 becomes larger than the cold temperature switching room 15 normally, it is thought that the temperature rise by the heat influence from the compressor 49 is suppressed compared with the case of the cold temperature switching room 15. It is done.

  The machine room partition plate 25 includes a steel plate machine room top plate 66 fixed to the outer surface material 2A of the main body 2, and heat insulating materials 67 to 69 provided on the machine room top plate 66. The chamber top plate 66 has an upright flange 66 </ b> A that rises at the front end, and the heat insulating materials 67 to 69 are housed and installed on the rear side of the upright flange 66 </ b> A and correspond to the upper side of the compressor 49. Is formed with a notch 72 continuously cut out rearward from the lower portion of the standing flange 66A, and the notch 72 is closed by a closing plate 73 having an upper wall 73A that retreats at the height of its front end. Since the compressor escape portion 61 is formed below the closing plate 73, the compressor escape portion 61 is also opened to the front surface of the machine room 26. Therefore, the compressor 49 can be easily installed from the front of the machine room 26.

  In addition, since the notch 72 ends before the rear end of the machine room top plate 66, the strength reduction of the machine room top plate 66 due to the formation of the notch 72 can be minimized.

  Further, the heat insulating material 68 provided on the closing plate 73, the heat insulating material 69 provided on the machine room top plate 66 corresponding to the lower part of the other cooling dedicated chamber 20, and the lower part of the cooling / temperature switching chamber 15. The heat insulating material 67 provided on the machine room top plate 66 is separated, and the thickness of the heat insulating material 68 on the closing plate 73 is set to be higher than that of the other heat insulating materials 67 and 69 on the upper surface 73A of the upper wall 73A of the closing plate 73. Since the difference between the height of the machine room top plate 66 and the height of the upper surface of the machine room top plate 66 is reduced, the heat insulation thickness of the machine room partition plate 25 corresponding to the compressor escape portion 61 can be reduced with a simple configuration. Become.

  Further, since the heat insulating materials 67 to 69 are separated, the heat insulating material 68 on the closing plate 73 and the machine room top plate 66 on the cold temperature switching chamber 15 side are provided for a plurality of models having different volumes of the cooling dedicated chamber 20. The heat insulating material 67 is shared, and only the heat insulating material 69 on the machine room top plate 66 on the cooling-only room 20 side needs to be changed in width.

  In this case, the heat insulating material 68 on the closing plate 73 extends to the rear end of the machine room top plate 66, and packing is provided between the heat insulating material 68 and the upper surface of the machine room top plate 66 at the rear side of the notch 72. Since 71 is provided, the gap can be filled with relatively inexpensive packing, and the cost can be reduced.

  Further, since the width of the compressor escape portion 61 is smaller than the diameter of the compressor 49, the shape of the upper portion of the compressor 49 that is curved is used to make the compressor escape portion 61 of the minimum width necessary. Thus, the compressor 49 can be installed, and a decrease in the heat insulation performance of the machine room partition plate 25 can be minimized.

  In the embodiment described above, the side wall 73C of the closing plate 73 is lowered substantially vertically, but the side wall 73C may be inclined so as to expand downward as shown in FIG. By using the closed plate 73 having such a shape, the side surface of the compressor escape portion 61 is inclined so that the lower side is widened, so that the air flow between the compressor 49 and the compressor escape portion 61 is smooth. Thus, it is possible to improve the heat dissipation of the compressor 49, improve the performance of the cooling unit 53, and reduce the thermal influence on the cooling exclusive chamber 20.

  In the above embodiment, the product storage column 18 and the outer door 3, the upper side inner door 21, and the lower side inner door 22 are all reused. Needless to say, if it can be reused, it can contribute to resource saving.

DESCRIPTION OF SYMBOLS 1 Vending machine 2 Main body 3 Outer door 15 Cooling / temperature switching room 16 Product storage part 17 Storage part partition plate 18 Product storage column 20 Cooling room 25 Machine room partition plate 26 Machine room 36, 41 Switching room cooler 37, 42 switching Radiator for room 46 Cooler for exclusive room 47 Heat exchanger for heat absorption 49 Compressor 51 Main radiator 53 Cooling unit 61 Compressor relief part 66 Machine room top plate 66A Standing flange 67 to 69 Heat insulation 71 Packing 72 Notch 73 Blocking plate 73A Upper wall 73C Side wall

Claims (8)

In a vending machine in which a product storage unit for storing products is configured in the upper part of the main body, and a machine room in which a compressor and a main radiator are provided in the lower part is provided.
The product storage section is partitioned into a cooling / cooling switching chamber that can be switched between cooling and heating by a heat insulating storage section partition plate and a cooling dedicated chamber for cooling, and the product storage section and the machine room are insulated. It is partitioned by a machine room divider,
An outer door that opens and closes the front surface of the main body, an inner door that opens and closes the front surface of the product storage section, a product storage column that is provided in each of the cooling / cooling switching chamber and the cooling dedicated chamber, and stores the cooling / cooling switching A switching chamber radiator and a switching chamber cooler that are provided in a room and that constitute the cooling unit, and a dedicated chamber cooler and an endothermic heat exchanger that are provided in the cooling dedicated chamber and constitute the cooling unit; With
The heat absorption heat exchanger is provided on the refrigerant downstream side of each cooler, and the refrigerant flowing out from each cooler absorbs heat,
The compressor is provided corresponding to the lower part of the cooling chamber, and the lower surface of the machine room partition plate corresponding to the upper part of the compressor is a higher compressor escape portion than the other parts. A vending machine characterized in that the heat insulation thickness of the machine escape section is thinner than other parts. The machine room partition plate consists of a steel plate machine room top plate fixed to the main body, and a heat insulating material provided on the machine room top plate,
The machine room top plate has a standing flange that rises at the front end, and the heat insulating material is stored and installed on the rear side of the standing flange,
The machine room top plate corresponding to the upper side of the compressor is formed with a notch that is continuously notched backward from the lower portion of the standing flange, and the notch is retreated at the height of its front end. The vending machine according to claim 1, wherein the vending machine is closed by a closing plate having a wall, and the compressor escape portion is formed below the closing plate.   The vending machine according to claim 2, wherein the cut-out portion ends before the rear end of the machine room top plate.   The heat insulating material provided on the closing plate is separated from the heat insulating material provided on the other part of the machine room top plate. 3. The vending machine according to claim 2, wherein the vending machine is thinner than the heat insulating material by a difference between the height of the upper surface of the upper wall of the blocking plate and the height of the upper surface of the machine room top plate.   The notch ends before the rear end of the machine room top plate, and the heat insulating material on the closing plate extends to the rear end of the machine room top plate, and the heat insulator and the rear side of the notch portion The vending machine according to claim 4, wherein a packing is provided between the upper part of the machine room top plate and the upper part of the machine room.   The vending machine according to any one of claims 1 to 5, wherein a width of the compressor escape portion is smaller than a diameter of the compressor.   The vending machine according to any one of claims 1 to 6, wherein a side surface of the compressor escape portion is inclined so as to expand downward. A product storage unit for storing products is configured in the upper part of the main body, and a machine room in which a compressor and a main radiator that configure the cooling unit are provided in the lower part, and the product storage unit is provided with heat insulating storage. Partitioned into a cooling / cooling switching chamber that can be switched between cooling and heating by a partition plate and a cooling-dedicated cooling chamber, and the product storage section and the machine room are partitioned by a heat-insulating machine chamber partition plate, An outer door that opens and closes the front surface of the main body, an inner door that opens and closes the front surface of the product storage section, a product storage column that is provided in each of the cooling / cooling switching chamber and the cooling dedicated chamber, and stores the cooling / cooling switching A switching chamber radiator and a switching chamber cooler that are provided in a room and that constitute the cooling unit, and a dedicated chamber cooler and an endothermic heat exchanger that are provided in the cooling dedicated chamber and constitute the cooling unit; Each said cooling In the vending machine in which the heat-absorbing heat exchanger is provided downstream of the refrigerant and absorbs heat from the refrigerant flowing out from each cooler, at least one of the existing product storage column, the outer door, and the inner door is used. However, when installing a compressor with a height dimension higher than that of the existing compressor in the machine room,
By making the heat insulation thickness of the machine room partition plate corresponding to the lower part of the cooling dedicated chamber thinner than the other parts, the lower surface of the machine room partition plate forms a compressor escape portion higher than the other parts. And a member reusing method in a vending machine, characterized in that a compressor having a high height is provided corresponding to the lower portion of the compressor escape portion.

Images